230913_Instrumentation_and_Control_Devices_for_HVAC_GS_June_2014.pdf

CONSTRUCTION ISSUE

Architectural & Refrigeration Upgrade

Commissary - Fort Myer, VA 28 Apr 2015

INSTRUMENTATION AND CONTROL DEVICES FOR HVAC

23 09 13 - 1

SECTION 23 09 13

INSTRUMENTATION AND CONTROL DEVICES FOR HVAC

(Edited from DeCA June 2014 Design Criteria)

PART 1 - GENERAL

1.1 SUMMARY

A. Section Includes:

1. Thermostats.

2. Dampers.

3. Miscellaneous accessories.

B. Related Sections:

1. Division 01 Section Mechanical, Refrigeration, Food Service Equipment and Electrical Coordination.

2. Division 01 Section Quality Control.

3. Division 01 Section Closeout Procedures.

4. Division 23 Section Fuel-Fired Heaters.

5. Division 23 Section Ductless Split-System Air Conditioners.

6. Division 23 Section HVAC Power Ventilators.

7. Division 23 Section Metal Ducts and Air Accessories.

8. Division 23 Section Refrigeration Monitoring and Control Systems (RMCS).

9. Division 23 Section Packaged Rooftop HVAC Units.

10. Division 26 Electrical.

1.2 QUALITY CONTROL

A. The following publications form a part of this specification to the extent they are applicable:

1. Division 01 Section Quality Control.

2. NEMA DC 3 - Low-Voltage Room Thermostats.

3. NFPA 70 - National Electrical Code.

4. NFPA 90A Installation of Air Conditioning and Ventilation Systems.

1.3 SUBMITTALS

A. Submittals for Review:

1. Division 01 Section Quality Control: Procedures for submittals.

2. Product Data: Provide description and engineering data for each control system component.

Include sizing as requested. Provide data for each system component and software module.

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B. Submittals At Project Closeout:

1. Division 01 Section Closeout Procedures.

2. Operation and Maintenance Data: Include inspection period, cleaning methods, recommended cleaning materials, and calibration tolerances.

3. The Contractor shall submit all certifications and testing data as a supplement to previously submitted O & M manuals at contract closeout.

1.4 QUALIFICATIONS

A. Manufacturer Qualifications: Company specializing in manufacturing the Products specified in this Section with minimum three years experience.

1.5 PREINSTALLATION MEETING

A. Division 01 Section Administration Requirements.

B. Convene one week before starting work of this Section.

C. Attendees shall be Division 23 Section Refrigeration Monitoring and Control Systems (RMCS) Sub-contractor, Division 23 Section Instrumentation and Control Devices for HVAC Sub-contractor, Government's Designated Representative, and General Contractor’s Representative.

1.6 REGULATORY REQUIREMENTS

A. Products Requiring Electrical Connection: Listed and classified by Underwriters Laboratories Inc. as suitable for the purpose specified and indicated.

1.7 MAINTENANCE SERVICE

A. Division 01 Section Closeout Procedures.

B. Provide service and maintenance of control system for one year from date of Substantial Completion.

C. Provide complete service of controls systems, including call backs. Make minimum of 4 complete normal inspections of approximately 42 hours duration in addition to normal service calls to inspect, calibrate, and adjust controls, and submit written reports.

1.8 EXTRA MATERIALS

A. Division 01 Section Closeout Procedures.

B. Provide two of each type of thermostat.

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PART 2 - PRODUCTS

2.1 THERMOSTATS

A. Line Voltage Thermostats:

1. Integral manual On/Off/Auto selector switch, single or two pole as required.

2. Dead band: Maximum 2 deg F.

3. Cover: Locking with set point adjustment, setpoint indication, with thermometer.

4. Rating: Load.

B. Thermostats - Programmable:

1. Honeywell T8000 or equal.

2. Non-volatile set point memory.

3. Separate setpoints for Heating-Day, Heating-Night, Cooling-Day and Cooling-Night.

4. Deadband between Heating and Cooling setpoints.

5. Automatic changeover from Heating to Cooling.

6. Choice of constant or cycling fan on Day cycle via concealed switch.

7. Cycling fan control on Night cycle.

8. Relay to close OA MD on Night cycle.

9. Quartz clock.

10. Up to 4 time periods and setpoints.

11. Monday through Friday Program and Saturday Sunday Program.

C. Room Thermostat Accessories: Thermostat Covers:

1. Insulating Bases: For thermostats located on exterior walls.

2. Thermostat Guards: Locking transparent plastic mounted on separate base.

3. Adjusting Key: As required for device.

D. Airstream Thermostat:

1. Remote bulb or bimetallic rod and tube type, proportional action with adjustable setpoint in idle of range and adjustable throttling range.

2.2 DAMPERS

A. See Section 23 31 13 Metal Ducts.

B. Damper Operators:

C. General: Provide smooth proportional control with sufficient power for air velocities 20 percent greater than maximum design velocity and to provide tight seal against maximum system pressures.

Provide spring return for two position control and for fail safe operation.

D. Electric Operators:

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1. Spring return, adjustable stroke motor having oil immersed gear train, with minimum position potentiometer.

2. Number: Sufficient to achieve unrestricted movement throughout damper range.

3. Verify that operators are compatible with Division 23 Section Refrigeration Monitoring and

Control Systems (RMCS).

2.3 KITCHEN EXHAUST FAN

A. Fan shall run when any appliance under hood runs or when a 0-4 hour spring wound timer mounted adjacent to the hood is activated. Provide relays, wiring, spring wound timer, etc. as required.

PART 3 - EXECUTION

3.1 EXHAUST FANS - STAT CONTROL (Fire Service Room, Electrical room, Storage Rooms, etc.)

A. On room temperatures above 85 deg F open intake damper (if shown) and start exhaust fan. Obtain power for intake dampers from the circuit provided for the factory furnished motorized damper in the fan intake. Furnish motorized dampers as specified in Division 23 Section Metal Ducts. Provide all conduit, wiring, relays, etc. to complete the installation of the controls, motors, and dampers. Where exhaust fans and heating elements are controlled in the same room, provide a heating / cooling thermostat with a minimum 10 degree dead band between heating and cooling.

3.2 ROOFTOP HVAC UNITS

A. Section 23 09 16 Refrigeration Monitoring and Control Systems (RMCS) shall furnish the controls for these units. Provide wiring, relays, etc. to interface with Section 23 09 16 Refrigeration Monitoring and Control Systems (RMCS) Contact Closures.

B. Units less than 30,000 B/hr. shall have programmable thermostats.

3.3 DUCTLESS SPLIT SYSTEMS

A. Mount and wire the thermostat furnished with the unit. Provide control wiring between indoor and outdoor units.

3.4 GAS FIRED UNIT HEATERS, RADIANT HEATERS, AND ROOF MOUNTED FURNACE

A. Mount and wire the thermostat furnished with the unit.

3.5 GAS FIRED UNIT HEATERS, RADIANT HEATERS IN RECEIVING AND STAGING AREA

A. Controlled by RMCS.

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3.6 EXHAUST FANS

A. Provide control wiring to perform the functions scheduled on the Drawings.

1. D/N - Enable fan to run in Day mode of the air conditioning unit indicated- by Division 23 Section Refrigeration Monitoring and Control Systems (RMCS).

2. Stat - Start fan on temperature rise above 85 deg F - by Division 23 Section Instrumentation and Control Devices for HVAC.

3. MS - Manual switch by Division 26 in series with Division 23 Section Instrumentation and Control Devices for HVAC control.

4. 2S - two speed control.

5. MS/D - Motorized shutter/damper furnished prewired with fan.

6. Intake MD - Intake motorized damper - control to open when fan runs. Provide power to intake damper motor from fan motorized damper circuit.

3.7 DAMPER MOTORS

A. Install new motors on existing dampers where indicated.

END OF SECTION